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29213 (1991 SJ)
Classification: Main-belt Asteroid          SPK-ID: 2029213
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1166489220427704 5.8107e-08  
a 2.19614890723073 9.7958e-09 AU
q 1.939970504556857 1.266e-07 AU
i 5.200569216952487 5.0166e-06 deg
node 139.4969827173613 6.6402e-05 deg
peri 83.70216909068928 6.9641e-05 deg
M 164.1333156986535 2.1358e-05 deg
tp 2456458.517399566374
(2013-Jun-15.01739957)
7.0042e-05 JED
period 1188.751566527368
3.25
7.9535e-06
2.178e-08
d
yr
n .3028387176402615 2.0262e-09 deg/d
Q 2.452327309904602 1.0938e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      988  
   data-arc span      8464 days (23.17 yr)  
   first obs. used      1991-09-15  
   last obs. used      2014-11-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .49492  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jan-08 03:17:07  

Additional Information
 Earth MOID = .941201 AU 
 T_jup = 3.654 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.7 mag n/a MPO309380  

29213 (1991 SJ)          Discovered 1991-Sep-29 by McNaught, R. H. at Siding Spring (413)
Reference: 20011002/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1991 SJ = 2000 CB95 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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